Calorie Deficit Equation:
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The Calorieking Calculator helps determine your daily calorie deficit for weight loss by calculating the difference between your maintenance calories and actual intake. A 500 kcal daily deficit equals approximately 1 pound of weight loss per week.
The calculator uses the calorie deficit equation:
Where:
Explanation: Your BMR multiplied by activity factor gives maintenance calories. Subtracting your actual intake reveals your daily deficit or surplus.
Details: Creating a consistent calorie deficit is the fundamental principle of weight loss. Understanding your exact deficit helps plan sustainable weight loss strategies and avoid excessive restriction.
Tips: Enter your accurate BMR (use a BMR calculator if unknown), select appropriate activity level based on your daily routine, and input your actual daily calorie intake. All values must be positive numbers.
Q1: What is a safe calorie deficit?
A: A deficit of 500-1000 kcal/day is generally safe, resulting in 1-2 pounds of weight loss per week. Avoid deficits larger than 1000 kcal/day.
Q2: How do I calculate my BMR?
A: Use standard BMR formulas like Mifflin-St Jeor or Harris-Benedict equations based on age, gender, height, and weight.
Q3: Why isn't my weight loss matching the calculation?
A: Water retention, hormonal fluctuations, inaccurate tracking, or metabolic adaptation can affect actual weight loss results.
Q4: Should I adjust my deficit over time?
A: Yes, as you lose weight, your BMR decreases. Recalculate every 10-15 pounds lost for accurate deficit planning.
Q5: Is exercise necessary for weight loss?
A: While calorie deficit is primary, exercise helps preserve muscle mass, improves health, and can create additional deficit.